Self-cleaning drain valve



F. H. ETZENHOUSER.

SELF CLEANING DRAIN VALVE.

APPLICATION FILE D OCT. 1!, I920.

m l m h i I INVENTOR. Fred JLEiZmz/zauser;

' ATTORNEY FRED H. ETZENHOUSER, OF MOUNT WASHINGTON, MISSOURI.

SELF-CLEANING DRAIN VALVE.

Specification of Letters Patent.

Patented Feb. 14, 1922.

Application filed October 11, 1920. Serial No. 416,052.

To all whom it may concern:

Be it known that I, FRED H. ETZENHOUSER, a citizen of the United States, residing at Mount Washington, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Self- Cleaning Drain Valves, of which the following is a specification.

This invention relates to improvements in valves for draining automobile-radiators, water boilers, and other liquid containers, and one object is to provide a self-cleaning drain valve in which it is impossible for sediment and other foreign matter to collect and clog said valve.

Another object is to provide a valve which has a larger outlet opening, thus allowing the liquid to drain out of the radiator or boiler faster than with the old form of valve with its small outlet port. 7

Another object is to provide a valve which can be easily substituted for the old form of valves, without enlarging the perforation in the radiator or boiler and without forming new perforations to receive the valve.

A further object of the invention is to provide a valve which cannot be easily jarred open as is somtimes the case with the ordinary drain valve with which automobile radiators are usually equipped.

With the above and other objects in view, reference will now be had to the acompanying drawing, in which:

ig. 1 is a broken front elevation and section of a radiator equipped with my valve.

Fig. 2 is an enlarged vertical section of the valve.

Fig. 3 is an enlarged plan view of the valve.

Referring now in detail to the various parts A designates a container of the radiator type usually employed on motor vehicles.

1 designates the valve constituting the present invention and embodying a tubular member 2, provided at one end with threads 4 to engage the threaded aperture in the container.

The internal portion at one end of the member 2 is formal into an outwardly flaring valve seat 6 to receive a correspondingly shaped valve plug 8, consisting of an outer cap 10 underlaid by a packing ring 12 of rubber or other suitable material, which is held in place by a tubular sleeve 14, through which a valve stem 16 extends and is secured at one end to said cap 10.

The valve stem 16 extends axially through the tubular member 2 and is provided with a knob 18 by means of which said stem and its valve may be actuated.

In practice the valve is secured in the original opening in the container, when the old form of drain valve is to be replaced, or in the case of a new container or boiler a hole is drilled and threaded to receive said valve, in the ordinary manner.

When in use the pressure of the water in the radiator or boiler, on top of said valve plug 8, together with the weight of said plug, prevents the same from being jarred from its seat. When it is desired to empty the container, the'knob 18 is pushed upwardl or inwardly, which throu h the interme iacy of the valve stem 16, 1i s the valve plug 8 from its seat, after which said plug may be engaged over the upper margin of the tubular member 2, thus holding said valve in open position. It will be seen that with this form of valve, there is no tendency for the water outlet to become clogged, as each time the valve is opened it breaks away any film or sediment which may have lodged on top of the valve plug 8. It will also be seen that the liquid can flow freely through the valve as the opening throu h the tubular member 2 is, substantially, uniform through out its length. I

From the foregoing it will be understood that I have provided a valve which is simple in construction and not likely to become clogged or get out of order, and while I have shown and described the preferred embodiment of the invention, I also reserve the right to make such changes in the construction, proportion and arrangement of parts as properly fall within the spirit and scope of the claim.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

A valve consisting of a tubular member having a seat in its upper end, a valve plug adapted to close said seat or be heldin open position by being engaged over the upper In testimony whereof I afiix my signature.

end of the tubular member, and a stem in the presence of two Witnesses.

fixed at its upper end to said valve plug I and extending downwardly through the FRED ETZENHOUSER' 5 tubular member so that itimay be grasped Witnesses: r

and manipulated to open and close said F. G. F ISOHJER,

valve plug. p p L. FISCHER. 

